US11889742B2ActiveUtilityA1

Apparatus of manufacturing display device and method of manufacturing display device

50
Assignee: SAMSUNG DISPLAY CO LTDPriority: Nov 4, 2020Filed: Sep 30, 2021Granted: Jan 30, 2024
Est. expiryNov 4, 2040(~14.3 yrs left)· nominal 20-yr term from priority
H10P 72/04H10P 72/0442H10P 72/7442H10P 72/78H10P 72/74H10P 72/0441H10K 71/00H01L 21/67011H01L 21/67132H10K 71/80H10K 71/851Y10T156/11Y10T156/1174Y10T156/1179
50
PatentIndex Score
0
Cited by
79
References
20
Claims

Abstract

A manufacturing apparatus of a display device includes: a first stage including a plurality of cell units, each including: a display unit including a display area, and a pad area; and a protective film unit attached to the display unit, and including a display film portion corresponding to the display area, and a pad film portion corresponding to the pad area; a second stage; and a transfer unit to transfer the cell units to the second stage from the first stage, and to peel off the pad film portion. The transfer unit includes: a body member; a plurality of pins along a first direction on a first surface of the body member; a plurality of suction pads on the first surface of the body member along a second direction; and a reel member on a second surface of the body member to supply a peeling tape to the second surface.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. An apparatus for manufacturing a display device, comprising:
 a first stage comprising a plurality of cell units defined by dividing a mother substrate and a work protective film attached on the mother substrate, each of the cell units comprising:
 a display unit comprising a display area, and a pad area; and 
 a protective film unit attached to the display unit, and comprising a display film portion corresponding to the display area, and a pad film portion corresponding to the pad area; 
 
 a second stage where the pad film portion of the cell units is peeled off; and 
 a transfer unit configured to transfer the cell units to the second stage from the first stage, and to peel off the pad film portion, the transfer unit comprising:
 a body member comprising a first surface and a second surface opposite to the first surface; 
 a plurality of pins along a first direction on the first surface of the body member; 
 a plurality of suction pads on the first surface of the body member along a second direction crossing the first direction; and 
 a reel member on the second surface of the body member, and configured to supply a peeling tape. 
 
 
     
     
       2. The apparatus of  claim 1 , wherein the pins are located along a plurality of lines defined in the first direction, and spaced from each other. 
     
     
       3. The apparatus of  claim 1 , wherein each of the cell units corresponds to at least one of the pins. 
     
     
       4. The apparatus of  claim 1 , wherein the reel member comprises a plurality of reel members, and the plurality of reel members are located along the second direction, and spaced from each other. 
     
     
       5. The apparatus of  claim 4 , wherein each of the plurality of reel members comprises:
 a first reel configured to supply the peeling tape; and 
 a second reel facing the first reel, and configured to take up the peeling tape. 
 
     
     
       6. The apparatus of  claim 1 , wherein the suction pads are configured to adsorb the display film portion. 
     
     
       7. The apparatus of  claim 1 , wherein at least two suction pads from among the plurality of suction pads are configured to adsorb one cell unit from among the plurality of cell units. 
     
     
       8. The apparatus of  claim 1 , wherein each of the suction pads comprises:
 a suction portion configured to adsorb a corresponding cell unit from among the plurality of cell units; 
 a buffer portion connected to the suction portion; and 
 a connection portion connecting the suction portion and the body member to each other, 
 wherein the suction portion and the buffer portion comprise a rubber material. 
 
     
     
       9. The apparatus of  claim 8 , wherein the suction portion has a vacuum suction force. 
     
     
       10. The apparatus of  claim 1 , wherein each of the pins comprises:
 a contact portion in contact with the peeling tape; 
 a support portion extending from the contact portion, and located in a hole defined through the body member; and 
 a spring in contact with the contact portion, and located in the support portion. 
 
     
     
       11. The apparatus of  claim 1 , wherein the pins are configured to concurrently descend or ascend vertically. 
     
     
       12. The apparatus of  claim 1 , further comprising a driver configured to drive the transfer unit. 
     
     
       13. The apparatus of  claim 1 , wherein the second stage comprises a fixing member configured to fix the cell units. 
     
     
       14. A method of manufacturing a display device, comprising:
 providing a work substrate on a first stage, the work substrate comprising:
 a mother substrate comprising a plurality of display units, each of the display units comprising a display area, and a pad area; and 
 a work protective film attached to the mother substrate, and comprising a display film portion corresponding to the display area, and a pad film portion corresponding to the pad area; 
 
 cutting the work substrate to divide the work substrate into a plurality of cell units, each of the cell units comprising one display unit from among the plurality of display units, and a protective film unit of the work protective film, the protective film unit corresponding to the one display unit; 
 transferring the cell units to a second stage using a transfer unit, the transfer unit comprising:
 a body member; 
 a plurality of pins along a first direction on a first surface of the body member; and 
 a plurality of suction pads on the first surface of the body member along a second direction crossing the first direction; 
 
 attaching a peeling tape to the pad film portion of the cell units by descending the pins vertically; and 
 peeling off the pad film portion of the cell units attached to the peeling tape by ascending the transfer unit or the pins. 
 
     
     
       15. The method of  claim 14 , wherein the transferring of the cell units to the second stage comprises:
 adsorbing the display film portion of the cell units by the suction pads; and 
 separating the cell units from the suction pads on the second stage, and placing the cell units on the second stage. 
 
     
     
       16. The method of  claim 14 , further comprising rotating a plurality of reel members to take up the peeling tape after the peeling off of the pad film portion of the cell units, the plurality of reel members being located at sides of a second surface of the body member opposite to the first surface of the body member. 
     
     
       17. The method of  claim 16 , wherein each of the reel members comprises:
 a first reel configured to supply the peeling tape; and 
 a second reel facing the first reel, and configured to take up the peeling tape, and 
 wherein the first reel is rotated in synchronization with the second reel taking up of the peeling tape. 
 
     
     
       18. The method of  claim 14 , wherein the cutting of the work substrate comprises:
 cutting the work substrate along a first cutting line corresponding to an edge of each of the display units; and 
 cutting the work protective film along a second cutting line corresponding to a boundary between the display area and the pad area of a corresponding display unit. 
 
     
     
       19. The method of  claim 14 , wherein the second stage comprises a fixing member to fix the cell units. 
     
     
       20. The method of  claim 14 , wherein the transferring of the cell units to the second stage and the attaching of the peeling tape to the pad film portion of the cell units are concurrently performed.

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.